{{
  forms.panel_fields(
    'Facebook',
    (form.facebook_app_id, form.facebook_app_secret),
    '''
      Site URL for <a href="https://developers.facebook.com/apps" target="_blank">Facebook application</a>:
      <em>%s</em>
    ''' % url_for('facebook_authorized', _external=True)
  )
}}
